124 FUNGUS-FLOE A. 



Corticium porosum, B. and Br., Ann. Nat. Hist., ser. 4, xi. 

 p. 343 ; Mass., Mon. Thel., p. 138. 



On wood. Broadly and irregularly effused, generally 

 loosely fibrillose and spongy, with variously-sized pores or 

 lacunae on the surface ; vaguely spreading on the surface of 

 wood and passing on to surrounding bodies on the ground, 

 sometimes forming a thick felt with scattered tufts of 

 sporophores, as in the imperfect forms of Cort. aracJinoideum ; 

 sometimes passing from the ahove stage into a compact, con- 

 tinuous, waxy hymenium of an ochraceous or pale cinnamon 

 colour when dry. The hyphae are 4-5 p.. thick, and fur- 

 nished with numerous clamp-connections ; resembling in 

 habit Corticium porosum, differs in the spores and in the 

 hymenium not being cracked when dry. 



Corticium. radiosum. Fr. 



Subrotund, thin, closely adnate, margin white, fibrillose, 

 radiating ; hymenium dingy ochraceous, not cracked when 

 dry ; spores subglobose, 5-6 //.. diameter. 



Corticium' radiosum, Fries, Hym. Eur., p. 649 ; Mass., Mon. 

 Thel., p. 139. 



Atlielia ochracea, Pers., Myc. Eur., i. p. 84. 



Corticium radians, B. and Br. 



On rotten wood. Somewhat resembling C. lacteum in 

 habit, but distinguished by the dark ochraceous hymenium, 

 which does not crack when dry. 



** Hymenium brightly coloured. 



Corticium roseolum. Mass. 



Very broadly effused, indeterminate, very thin and in- 

 separable from the matrix; hymenium continuous, bright 

 rose-coloured, becoming pale; spores subglobose, apiculate 

 7 x 8-9 fji. 



Corticium roseolum, Massee, in Mon. Thel., p. 140. 



On old worked wood. Spreading irregularly for many 

 inches on smooth wood, exceedingly tain, adglutinated, 

 margin vague ; hymenium not cracked when dry, at first of 

 a bright rose-colour, then becoming pale and persisting as 

 pale ochraceous, with only a tinge of rose when dry. Spores 

 very abundant, resembling in habit Peniophora incarnata 



